Java Utililty Methods Object Hash

List of utility methods to do Object Hash

  1. HOME
  2. Java
  3. O
  4. Object Hash

Description

The list of methods to do Object Hash are organized into topic(s).

Method

intcombineHashesOrdered(Object... objs)
combine Hashes Ordered 
return combineHashesOrdered(Arrays.asList(objs));
intdeepHashCode(final Object object)
Returns a hash code for the specified object, which may be an array. 
if (object == null) {
    return 0;
if (object instanceof Object[]) {
    return Arrays.deepHashCode((Object[]) object);
if (object instanceof double[]) {
    return Arrays.hashCode((double[]) object);
...
intdeepHashCode(Object o)
Gets hash code of an object, optionally returns hash code based on the "deep contents" of array if the object is an array. 
if (o == null) {
    return 0;
if (!o.getClass().isArray()) {
    return o.hashCode();
if (o instanceof Object[]) {
    return Arrays.deepHashCode((Object[]) o);
...
StringgetIdentityAsHex(Object object)
Gets the identity hashcode of the given Object as 8-digit hex-number. 
return String.format("%08x", Integer.valueOf(System.identityHashCode(object)));
inthash(Object o)
hash 
if (o == null)
    return 0;
return o.hashCode();
inthash(Object... objects)
Generates a hash code for a collection of objects using Arrays#hashCode(Object[]) . 
return Arrays.hashCode(objects);
inthash(Object... values)
Generates a hash code for a sequence of input values. 
return Arrays.hashCode(values);
inthashCode(final Object o)
hash Code 
if (o == null) {
    return NullHashCode;
if (o.getClass().isArray()) {
    if (o instanceof Object[]) {
        return combineHashCodes((Object[]) o);
    if (o instanceof byte[]) {
...
inthashCode(final Object... objects)
Generates a hash code for multiple values. 
return Arrays.hashCode(objects);
inthashCode(final Object... objects)
Compute a combined hash code from the supplied objects. 
if ((objects == null) || (objects.length == 0)) {
    return 0;
int hc = 0;
for (Object object : objects) {
    hc = PRIME * hc;
    if (object instanceof byte[]) {
        hc += Arrays.hashCode((byte[]) object);
...